Hi, this error occurs when a newer version of jquery and jquery.easing is used with an older version of the call to animate.easing. Do a search in your javascript of your theme for the text “easeout” or “easein” or “easeinout”.
These should be changed to “easeOutQuad” and “easeInQuad” or “easeInOutQuad”.
The easing plugin has changed, and that’s why your theme is broken.
Newest version of easing does not use those old keywords anymore, so they should be changed.
